Normal issues refer to sudden death, black screen, game crash, and other issues that can be recovered if you restart the game. To avoid this type of issue, you could clear your Google Play Store data and cache.
Swipe down twice from the top toolbar on the homepage of Wakuoo
>> find settings >> Apps >> Google Play Store
>> Storage >> Clear Data
Then Reboot Wakuoo and test again
4. Cannot Find/ Download Games
If you don't know how to find games in Wakuoo, check this